UkMethadonelady, not at first, and maybe not for women, but trust me after long enough it does. It's not like I couldn't get a hard on(with some physical contact) but the desire wasn't there, and I'm not talking about masturbation I have a gorgeous wife(of coming up on 12 years) and we always had a VERY active sex life until the last few years of me being on bupe(she still is on bupe, so maybe its different for women) and she was becoing very frustrated...but now that I am off things are returning to normal, I mean its still hard for me to keep up with her sometimes, but I want her, I'm just getting older and am a considerate lover so if my body(back pains, bloating, etc) is going to slow me down it makes me reluctant to engage. But we are having plenty of sex again, when at the worst times while I was on maintenance we might be own twice a month, or once some months, and for us that is very abnormal.